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. IMPROVEMENT 1N SAWING MAoHiNEs.

y SPECIEFIATION- TO ALL WHOM` IT MAY CONCERN: i

Be it known that I, P. A. GERRY, of Dover, in the county' ofPiscataquis, and State of Maine, have invented y a new and usefulImprovement in Wood-Sewing Machine; and I do hereby declare that thefollowing is a full, clear, and exact description thereof, which willenable others skilled in the art to-n1ake and use the same, refer- `encebeing had to the accompanying drawings, forming a part of thisspecification, in which- Figure 1 is a4 side view of my improvedwood-sawing machine, a part of the b lance-wheel being brokeni away toshow'the cog-wheel, and showing in red the position of the parts whenthe saw is elevated.

Figure2 is a. top view of the same. y

Figure 3 is a detail sectional view of the same, taken through thelinea: z, iig. 2.

Similar letters of reference indicate like parts'. v

My invention has for its object to furnish an improved machine, by meansof which wood may be sawn rapidlyand conveniently and it consists, rs't,in the combination of balance-wheel, cog-wheels, crank-wheel, and shaftswith each other and with the frame of the machine, for the purpose ofcommunicating motion tothe saw; second, in the combination andarrangement with each other, and with the saw, crank-wheel, and frame ofthe machine, of the arms by means of which the saw is connected to thecrank-wheel, from which: it receives motion; third, in the combinationwith each other and with the frame of the machine of the arms, spiralsprings, and roller, by means of which the saw is elevated; fourth, inthe combination with the roller of-the arms, one

or more, for .holding the wood; and, fifth, iii the combination witheachother, and with theroller `and frame of the machine, of the armsandspiral spring byfmeans of which the roller is operated. A

A is the frame of the machine. B is the balanoe-wheel, to which isattached a handle, C, for operating the machine. The balance-wheel, B,is attached to the end ofthe shaft, D, which revolves in bearingson theframe, A, as shown `in iig. 2. To this same shaft, D, within the frame,A, as shown, is attached a large gearlwheel, E, which meshes into asmaller gear-wheel, AF, attached to the shaft, G. This shaft, G,revolves in bearingsin supports, al and a, attached to the frame, A, asshown in iig. 1. To the farther end of this shaft, G, is attached thecrank-wheel, H, to which is pivoted .the crank-arm, I. The other end ofthe arm, I, is pivoted to the upper end of the arm, J, the lower end ofwhich is pivoted to the bottom sill, a3, of the frame, A, as shown iniig. 1. To the upper end of the said arm, J, is also pivoted the end ofthe arm, K, to theforward endof which is attached the saw, L.; M isabrace attached to the arm, K, and connected with the upper part of thebow or frame of the saw, as shown in fig. 1. In the drawings the sawv isrepresented as being an ordinary bow or buck saw, but any straight orcross-cut saw may be used. N is a roller revolving in bearings in theupper ends of the posts, a and a5, of the frame, A. One axle of theroller, N, projects through the post, af, and to its end-is attached anarm, O, to the lower end of which is attached one end of the coiled wirespring, l?, the other` end of which is attached to the lower'sill, as,of the frame, A. This spring draws `the lower end ofthe arm, O, forward,revolvf ing the roller, N, 4exceptV when the said. lower' end of thearm,'O, is held back by the lever, R. T his lever is -pivoted to theside of the sill, a3, as shown, and hasa handle, S, attachedto it forconvenience in operating it.

When this lever is pushed down into a horizontal position, its forwardend presses the lower end of Athe arm, 0, back, revolving the roller, N,to the right, and when the lever, R, is raised away from the arm, O, thecoiled spring, P, immediately draws the lower end of the arm0, forward,revolving the roller, N, to the left. S is` the i wood-frame, whichholds the wood ,while being sawn. Between the upper and lower sidepiecesof this frame are placed rollers, s, against which the stick to be sawnrests, and which enables said stick to be easily fedforward to the saw.To the roller, N, is attachedone or. more arms, T, to the end of each ofwhich is pivoted a swinging arm, U. Whenthe roller, N, is revolved tothe right by the arm, O, as before described, the lower ends of thearms, U, are pressed against the wood, holding it securelyin place.while being sawn. To the roller, N, is also attached an arm, V, to theforward end of which is attached one end ofthe coiled spring, W. -To theother end of this spring is attached the upper end of the slide-bar X.This bar slides vertically in guides` attached to the sides of thetimbers, a3 and a5,"of the frame, A, and has a guide-arm, Y, attached toits side, as shown in figs. lnalnd 3. When the roller, N, is revolved tothe left by'the arm, O, the arm, V,vand spring, W, lift the isliding-bar, X; this brings thregnide-arm, Y, into contact with thesaw-arm, K, andrai-ses the saw, L,out. of the way while the stick isbeing movedforward for another cut, the various parts'taking thepositions shown in ied in lig. 1.

Having thus described my invention, what I claimas new, and desire tosecure by Letters Patent, is-

1. Clamping the wood bymeans of the lever R, operating witli the larm O,roller N,'a.rins T, and swinging erm U, arranged and'operating as hereinrepresented and described. I

2. Raising and lowering the saw. by means of Phe lever R, arm O, rollerN, arm V, spring W, a.nd slide-bar X, with its guide-arm Y,substantially in the manner and for the purposejepresented anddescribed.

:'P. A.. GERRY` Witnesses CYRUs HILL, l Y A MARK PITMAN.

